Continuation of the Conditions for Wiping over Leather Socks

The Shaykh : Okay, another example. You performed wudu for the Fajr prayer and put on your socks, and you remained in a state of purity until the 'Isha' prayer. You prayed 'Isha' with the wudu from Fajr, then you slept and got up for the Fajr prayer. You performed wudu at five o'clock, because when a person sleeps, his wudu is invalidated. You wiped. Where does the wiping begin? From Fajr on the second day. That means a whole day and night have passed for you, but you do not count it, because the period begins from what? From the first wiping after a state of impurity. Okay, if the period ends, then there is no wiping, because the Messenger of Allah (peace and blessings be upon him) set a time limit, and Allah the Exalted said: So, if the Messenger of Allah (peace and blessings be upon him) has set a limit for us, we do not exceed it. An example of this is a man who put on his socks for the Fajr prayer and his wudu was invalidated at the time of the Zuhr prayer, at twelve o'clock. Note the example. He wiped at twelve o'clock. Where does the wiping begin? From twelve o'clock on the first day to twelve o'clock on the second day. But on the second day, he performed wudu and wiped at twelve o'clock minus a quarter, meaning before what? Before the end of the period by a quarter of an hour. However, he remained in a state of purity until he prayed 'Isha'. Is his prayer valid after the end of the period? The answer is: Yes, because purity is not invalidated by the end of the period. What is not possible after the end of the period is what? Wiping. As for purity, it remains, because the Messenger of Allah (peace and blessings be upon him) only set a time limit for wiping and did not set a time limit for purity. Based on this, we say that the end of the period does not invalidate purity, according to the stronger opinion. If someone tells you that purity is invalidated by the end of the period, say to him: "Was his purity not valid before the end of the period?" He will say, "What?" He will say, "Yes." "And no?" He will say, "Yes, because he performed wudu before the period, so his purity is valid." We say: If purity is established by the requirement of a legal proof, it is not invalidated except by a legal proof. If you bring a legal proof indicating that when the period ends, purity is invalidated, then it is upon my eyes and head. But if you do not bring one, then we presume the original state, which is the continuation of purity.
I think it is clear, everyone. Okay, how many conditions are there now? Let's see if one knows them. But you, what are the conditions for the permissibility of wiping over leather socks? Please, and stand up. You, yes, stand up.
The student: ... .

The Shaykh : Meaning that he wears them in a state of purity? Okay.
The student: ... .

The Shaykh : If you have never worn socks, it is apparent.
The student: ... .

The Shaykh : Okay, that it be in a state of minor impurity, not major impurity?
The student: ... .

The Shaykh : Well done. You take them off and wash the foot. Okay.
The student: ... .

The Shaykh : That it be within the period specified by the Shari'ah. Perfect, well done.